This article will show you how to Setup and configure DNS Server on Raspbian. Its called as Bind9 on RasberryPi and is used for resolving IP address to domain name and vice-versa. Make sure that you are logged in as ROOT user and update the OS to the latest.

Its now possible to install latest Nagios CORE version on Raspbian by following the steps in this article. Before writing this article I Googled for the same but couldn't find a single article covering install of latest version of Nagios on RasberryPi hence this guide. It has been fully tested and working on my personal RasPi.

This guide was originally written for Ubuntu but will work for Raspbian (Debian Wheezy) flavour for RasberryPi as well. It might work for all debian distros but not guranteed, you can try it out yourself.